Home / 198,205.20-296,700.30-109,186.20

Finding the Fourth Proportional to 198,205.20, 296,700.30 and 109,186.20

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Solution

The fourth proportional to 198,205.20, 296,700.30 and 109,186.20 is: 163,444.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,205.20 : 296,700.30 = 109,186.20 : x
  2. Step 2: Convert to fraction form
    198,205.20/296,700.30 = 109,186.20/x
  3. Step 3: Cross multiply
    198,205.20x = 296,700.30 × 109,186.20
  4. Step 4: Simplify right side
    198,205.20x = 32,395,578,295.86
  5. Step 5: Solve for x
    x = 32,395,578,295.86/198,205.20
  6. Step 6: Final answer
    x = 163,444.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.